When Jon Snow broke his vows to the Night's Watch by having sex with Ygritte in
"Game of Thrones" Season 3, Kit Harington made the mistake of watching the episode,
"Kissed By Fire," with his parents. Whoops!

Harington recounts the situation to Australian radio station
Nova FM during a recent interview. He says when he sat down to watch the episode with his parents, David and Deborah Harington, he wasn't thinking about how they would respond to his sexy scene.

"I don't know why I watched that episode with my parents, but I did," he admits, which sent the radio hosts into fits of laughter.

From the sounds of it, his mother and father had priceless reactions.

"Mum made an awkward excuse to get out of the room, saying 'I, umm, I gotta, umm, I think I can hear the kettle boiling,' before nipping out," Harington recalls.

David was proud of his son's turn on the show. "Dad was just chuckling," Harington says. "Dad was like, 'There's my boy.'"

Unfortunately there likely won't be many more Jon/Ygritte sex scenes coming up in Season 4, as they parted ways on pretty bad terms at the end of Season 3. "Game of Thrones" returns to HBO at 9 p.m. ET/PT April 6.